Effects of PEEP on Cardiovascular Dynamics after Open-Heart Surgery: A New Postoperative Monitoring Technique
| Autor: | Bryn T. Williams, Thomas A. Angerpointner, Alan E. Farnsworth |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Adult
Male Pulmonary and Respiratory Medicine medicine.medical_specialty Cardiac output Adolescent Blood Pressure Positive-Pressure Respiration medicine Humans Postoperative monitoring Cardiac Output Cardiac Surgical Procedures business.industry Hemodynamics Heart Stroke volume Blood flow Middle Aged respiratory tract diseases Surgery Blood pressure Anesthesia Circulatory system Breathing Female Cardiology and Cardiovascular Medicine business Blood Flow Velocity Surgical patients |
| Zdroj: | The Annals of Thoracic Surgery. 23:555-559 |
| ISSN: | 0003-4975 |
| Popis: | The circulatory effects of incremental increases in positive end-expiratory pressure ventilation (PEEP) were assessed on 11 occasions in postoperative cardiac surgical patients by phasic aortic blood flow measurements and high-fidelity pressure recordings from which flow and pressure-flow derivatives of cardiac performance were calculated. At 15 cm H 2 O PEEP, mean arterial blood pressure was decreased by 10%, stroke volume and cardiac output by 15%, and peak left ventricular power by 21%. Although these indices promptly returned to control levels when PEEP was discontinued, levels of PEEP above 10 cm H 2 O should be used with caution for this group of patients. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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